Welcome!

This week, we will be exploring the fascinating world of the internet. To kick things off, we'll be watching "The Internet: Crash Course Computer Science #29". This video provides a comprehensive overview of how the internet works, breaking down complex topics into easy-to-understand concepts.

You will learn about:

  • How data is broken down into packets and sent across the globe.
  • The difference between UDP and TCP, the two main protocols that govern data transfer.
  • The role of the Domain Name System (DNS) in translating human-readable domain names into machine-readable IP addresses.
  • A brief overview of the OSI model, a conceptual framework for understanding network interactions.

Please watch the video below carefully, as it will provide a strong foundation for the topics we will be discussing in more detail later in the course.

Last modified: Thursday, 14 August 2025, 10:18 AM